Preheater for gasoline stoves



Allg.. 12 1924.

w. c. CQLEMAN PREHEATER FOR GASOLINE STOVES Filed Nov. 9, 1923 l1 TTORNEy t ug., 12, 1924..

PATENT LIAM C. COLEMAN, F WICHITA, KANSAS.

TER FOR GSOLINE STOVES.

Application filed November 9, 1923. Serial No. 673,797.

To all whom 'it may concern. y

Be it known that li, WILLIAM C. CoLEMAN,

a citizen of the United States, residing at Wichita, inthe county ofSedgwick and State of Kansas, have invented certain new andusefullimprovements in Preheaters for Gasoline Stoves; and l do declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the figures of reference marked thereon,Iwhich form a part of this specification.

rlhis invention relates to hydrocarbon fuel burners and the primaryobject thereof is to provide a novel form of pre-heater for heating thegenerating chamber which transforms the liquid fuel into vapor or gaspreparatory to admitting it into the burner chamber or chambers. Theinvention contemplates the provision of a slide which may be convenientlactuated to cause a baille to be interposed between the discharge end ofthe vaporizin chamber and the intake manifold for the urners so that theliquid initially passing through the vaporizing chamber before thevaporizing chamber is heated will be deflected into a pre-heating pan orcup undery the vaporizing chamber where it may be ignited to heat thevaporizing cham- `ber so as to heat the, li uid fuel to a vaportemperature, then the slide may be actuated to move the delector out ofthe path of the fuel issuing .from the vaporizing chamber permitting itto pass into the burner mani fold. rThe slide may be convenientlycontrolled from a point adjacent to the valve control and consists ofcertain novel embodiments which will be described` in detailhereinafter, references being had to the accompanying drawings, inwhich:

Fig. 1 is a perspective view of a burner constructed in accordance withmy invention.

Fig. 2 is a detail perspective view of the slide and vaporizer cup. Fi 3is a longitudinal sectional view showing the slide in cross section andthe vaporizing cup in longitudinal section with the deflector infunctional position, and

Yof the guide Fig. 4 is a sectional view through the slide and cup whenthe4 through port is in alignment'V with the vaporizing chamber.

eferring now to the drawin 1 designates the base of the urner manifoldhere shown as provided with two burner plates 2 and 3 provided withspaces to receive' the asified fuel so it can be ig.- njted through t leslits 4 and 4. rlhe memo0 bers 2 and S are conventional burner elementsso their specific construction is immaterial.v The manifold 1 has avertical inlet Y tube 5 connected to the rear wall 6 of a rcetangularslide guide 7 by a duct 8. The foro5 ward end of tube 8 is slightlyflared to provcide a relatively wide mouth or inlet end so that gas andair may enter the duct 8 through dierent ports and become mixed toprovide the proper air and gas mixture for the 7o Haine, therefore itwill be seen that the duct 8 is a mixin chamber. In the front wall 9 isan opening 10 receiving the discharge end of the vaporlzing chamber ortube 11 which has one end supported by the 'w wall 9 and the other on abracket 12 carried by the front burner element 2. The effective portarea of the discharge end of the vaporizing chamber 11 is controlled bya valve on the end of the stem 13 in the usual manner 8o and thevaporizer tube 11 may be supplied with fluid through a pipe connection14C communicating with a suitable source of supply, preferably underpressure. Slidable in the burner guide is a guide late 15. 85 The blockconstitutes a valve for va ving olf communication between the dischargeend of the vaporizer tube 11 and the duct 8 and when the block or valve15 functions as such,

a concavity or recess 16 of the vaporizing 90 pan or cup 17 will bebrought into line with the discharge end of the vaporizing tube 11 sothat the liquid fuel will be discharged against the concavit and bedeflected into the longitudinally isposed pre-heater cup o5 in line withbut below the vaporizing tube 11. The vaporizing cup 17 is boat-shapedand it preferably has a central opening 18 in its bottom surrounded by avertlcal flange. 19, the central opening being for the purpose loo ofpermitting air to flow through the bottom of the cup to supply thenecessary oxywith openings 22 and 23.

Y gen to support combustion. The plate is yshaft has a right angularextension to provide a handle 27 and the other end has an l upstandinprojection 28 engaging a lug 29 in.I the sli e (see Fig. 2) so byturning the handle 27 the slide can be reciprocated'in its guide tocause the fuel passinefrom the vaporizer chamber or tube 11 to deflectedin the cup! 17 or permittin it to pass into the duct 8 and then on to te burners. The inlet openings to one of the burner elements 2 or 3 maybe controlled by an individual valve on a stem 30, theotherburner beingunder the control of the valve on stem' 13.

`The slot 31 in front of guide 7 is lon enough to permit the necessarymovement o in the cup and the flame therefrom w the cup 17 as it iscarried' to and fro by the slide plate 15.

When the parts are assembled and it is desired to start the burner thehandle 27 may be swung upward to bring the slide to the osition shown inFig. 1 with the slide valvmg oif at duct 8 and presenting the`depression 16 or hood of the vaporizer cup 17` integral with slide 15 inline with the discharge end of the vaporizing tube 11, then the valve onend of stem 13 is slightly unseated so as to permit some of the llquidfuel to dischar e against the curved srface `of the de ectin recess -16so it will ow into the cupf T e fuel can be ignited n ilhe'at thevaporizing tube 11 so that the liquid will be generated into gas. Theobserver can note the condition of the fuel issuing from the vaporizertube when the valve on the end of stem 13 is slightly unseated and dwhen the proper vaporization is takin lace the operator can swing thehandle 2 ownwardly so that the openin 23 will be in line with the'discharge end 0% the vaporlzing tube 11 and since the` slide has oneback wall, it' is obvious that the fuel can pass into the duct 8 andinto the manifold 1. Air for the gas will be furnished lthrough the endopenin 31 communicating with the hollow portion of the slide as clearlyshown in Fig. 1 so a proper mixture will be provided.

It will be apparent from the foregoing that the fluid issuing kfromthevaporizing chamber or tube 11 may be used as a reheating medium forheating the vaporlzer and that, its deflection may be easily accom aslide,

plished by manipulating the slide as shown and as the temperature hasbeen raised, the deector can be moved out of obstructing position andthe channel can be used in the usual wa What f1 claim and desire tosecure by Letters Patent is:

1. A preheater for oil stoves comprising a cup shaped member havin abaille, a vaporizer, a slide, to which t e cup sha d member is connectedand means for moving the slide transversal of and in front of the vaporizer to bring t e bale into and out of lne with a discharge openingin the vaporizer so that when the bafle is 1n line with the discharopening of the vaporizer, oil discharge from the vaporizer-w will bedirected into the cup shaped member so that it can be ignited to heatthe vaporizer.

2. In an oil burner, a vaporizer having a discharge opening, a` mixinglchamber with which the discharge opening communicates, a preheater cupon the slide having a baille in the mixing chamber and in line with thecup and means for actuatin the slide to b rin the baille into and out oline with the disc arge opening of the vaporizer.

3. An oil burner comprising a burner plate, a vaporizer above the burnerplate and having a discharge end beyond the periphery of the burnerplate, a transverse mixmg chamber into which the vaporizer discharges, apreheater cu having a baille at one end movable past tlie discharge endof the vaporizer, the baille being located in the mixing chamber, aslide supporting the cup, and means for moving the baille into and outof line with the discharge opening of the vaporizer.

4. An oil burner comprising a burner jet, a vaporizer above the burnerjet, amixing chamber. spaced from the burner jet and clommunicating withthe discharge opening of the vaporizer and a transversely movablepreheater cup having a baiile in the mixing chamber adapted to alignwith the discharge opening of the vaporizer to direct fuel ownwardlyinto the cup so that it can be ignited to preheat the va orizer andmeans for moving the cup and Eaile into and out of alignment with thevaporizer.

. 5. oil burner comprising a hollow casting havin a burner member forigniting liquid fue a vaporizer above the burner member, the length ofthe va orizer being greater than the diameter ci) the burner member, amixing chamber into which the vaporizer discharges, means communicatingthe mixing chamber with the burner member, a transversely movable slidein the mixing chamber, a preheater cu carried by the slide having aconcavitv adapted to align with the discharge end of the vaporizer whenthe preheater cup is beneath the vaporizer and means for moving theslide transversely of the vaporizer to bring the concavity into and outof alignment with the discharge end of the Waporizer.

6. An oil burner comprising a burner member adapted to burn vaporizedliquid fuel, a vaporizer `above the member, the length of the vaporizerbeing greater than the diameter of the member, the vaporizer having adischarge end, a' mixing chamber 10 into which the vaporizer discharges,means When the preheater cup is beneath the v'a' porizer and a.transversely movable slide supporting the preheater cup.,

ln testimony whereof ll ax my signature.

LLAM C. COLEMAN

